Speciality: 1）     made of the waving aluminum mesh or the expanded stainless steel mesh; 2）     Small resistance, washable repeatedly, high economical efficiency     Using:     1）      Ventilation system which is high strength anti-acid , alkali-resistant and alkali resistant;     2）      Filter for the spray-wax room in workshop of the automobile installation         Specification ：         Class Size W*H*D     Filtration area     （㎡） Remark height width depth G3 592 287 20 0.17 Available in the counts of the filtration layer 592 592 20 0.35 G4 592 287 46 0.17 592 592 46 0.35